Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10695017 | Advances in Space Research | 2005 | 6 Pages |
Abstract
We present the results of the first observations of the solar microwave burst with fine spectral structure of zebra type at the frequency about 5.7Â GHz. The burst has been detected simultaneously by the Siberian Solar Radio Telescope and by the spectropolarimeter of the National Astronomical Observatory of China. Zebra pattern consisted of three parallel stripes with complex frequency drift. The degree of circular polarization of emission reached 100%, the polarization sense corresponded to the extraordinary wave (X-mode). We have determined the plasma parameters in the emission source: plasma density about 1011Â cmâ3, magnetic field strength 60-80Â G. We argue that in the given event the most probable mechanism of the zebra pattern generation is non-linear coupling of harmonics of Bernstein modes.
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Space and Planetary Science
Authors
Alexander T. Altyntsev, Alexey A. Kuznetsov, Natalya S. Meshalkina, Yihua Yan,